He’s charged with a single count of conspiring to facilitate terrorist activity at some point between February and August 2010.

Sher is one of four men arrested in the misspelled terror probe Project Samossa.

At an August 2010 press conference, Mounties spoke of a terror cell just months away from carrying out attacks on unspecified targets in Canada, and boasted they’d seized circuit boards that could be used to trigger homemade bombs.

The cell was also raising cash to fund violence against Canadian soldiers in Afghanistan, RCMP claimed.

But Judge Charles Hackland heard just hints of these allegations during Monday’s proceedings, which were immediately ensnared in legal wrangling.

Defence lawyer Giuseppe Cipriano argued the Crown should have to commit to a single theory about what Sher is alleged to have done.

“We have essentially admitted to the entirety of the Crown’s case,” Cipriano said. “The conspiracy envisioned by the charge is that Dr. Sher joined a pre-existing conspiracy.”

With more than 200,000 pages of disclosure — much of it from wiretaps and Internet surveillance — fairness demands Sher be allowed to know from the outset the exact nature of the allegations against him.

“This is not your routine impaired driving,” Cipriano said. “It would be unfair to our client ... if he could be found guilty of another, different conspiracy.

Lawyers hinted that Sher is accused of being involved in financing terrorism.

Crown prosecutor Jason Wakely was reluctant to nail his colours to the mast, saying the charge relates to a specific transaction that’s “quite simple and straightforward.”

“He knows the transaction,” Wakely said.

Hackland will give his ruling Tuesday morning.

Wakely is then expected to outline the case against Sher.

Sher is likely the most-well known of his co-accused, thanks to a hammy appearance on Canadian Idol in which he pranced about and sang Avril Lavigne in the clothes and accent of a Middle Eastern caricature.

But the Mounties don’t always get their man.

A fourth terror suspect ended up charged only with domestic raps despite cops having bugged his home for months.